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55552500250 = 2531322037759
BaseRepresentation
bin110011101111001011…
…111110001000011010
312022101112211102001021
4303233023332020122
51402232420002000
641304230513054
74004433314062
oct635713761032
9168345742037
1055552500250
1121617a35735
12a92450578a
135314205b30
14298dd323a2
1516a208511a
hexcef2fe21a

55552500250 has 64 divisors (see below), whose sum is σ = 112059118080. Its totient is φ = 20499739200.

The previous prime is 55552500233. The next prime is 55552500319. The reversal of 55552500250 is 5200525555.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7155871 + ... + 7163629.

It is an arithmetic number, because the mean of its divisors is an integer number (1750923720).

Almost surely, 255552500250 is an apocalyptic number.

55552500250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55552500250 is an abundant number, since it is smaller than the sum of its proper divisors (56506617830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55552500250 is a wasteful number, since it uses less digits than its factorization.

55552500250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9992 (or 9982 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 55552500250 in words is "fifty-five billion, five hundred fifty-two million, five hundred thousand, two hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 125 130 250 325 650 1625 2203 3250 4406 7759 11015 15518 22030 28639 38795 55075 57278 77590 100867 110150 143195 193975 201734 275375 286390 387950 504335 550750 715975 969875 1008670 1431950 1939750 2521675 3579875 5043350 7159750 12608375 17093077 25216750 34186154 85465385 170930770 222210001 427326925 444420002 854653850 1111050005 2136634625 2222100010 4273269250 5555250025 11110500050 27776250125 55552500250